MKDD Tint Issue RPI5

[AwesomeKingClem]

@abj Definitely could've used this earlier :P
https://retropie.org.uk/forum/topic/30541/dolphin-emulator-running-on-rp4b-64bit

[retropieuser555]

@AwesomeKingClem Did that dolphin fork install for you? I get various errors where it's looking for a different version of pangocairo even though libpangocairo-1.0-0 is already installed by default

[AwesomeKingClem]

@retropieuser555 I don’t know yet. I am finally getting around to finishing RetroPie-related tasks, so just give me a bit to try it out. For real this time, promise!

[AwesomeKingClem]

@retropieuser555 I looked through Ishiiruka, and the difference between it and Dolphin is that Ishiiruka uses the EGL OpenGL interface. The question is, would it be possible to set up EGL on lr-Dolphin or Dolphin natively? I mean, the Mesa drivers for the Raspberry Pi use many different rendering interfaces, including EGL. It even uses EGL to run a 3D interface in the first place.

Edit: Guess what I found! https://docs.libretro.com/development/cores/core-specific/ishiiruka/ @mitu Ideas?

Edit the Sequel: Is this going to be a problem? https://www.reddit.com/r/EmulationOnAndroid/comments/ji84ai/a_very_important_note_on_dolphin_ishiruka_read_if/

[retropieuser555]

@AwesomeKingClem it's upto you, but reading that about it having shady potentially malicious code I'm out on testing that version. Will just wait for Mesa to be developed further so Vulkan or openly 3.3 is supported on pi 5.

[AwesomeKingClem]

@retropieuser555 Well, I mean it’s officially supported..?
https://github.com/libretro/Ishiiruka

[ExarKunIv]

@AwesomeKingClem it kinda is but it has not been updated in 4 years. So it obviously it's out of date.

And since Windows x64 - Visual Studio 2017 is stated in the documents. I don't think it will work on arm

[AwesomeKingClem]

@ExarKunIv I do understand what you mean by it being outdated, but it says the same thing for Dolphin anyways:
https://docs.libretro.com/development/cores/core-specific/dolphin/

[ExarKunIv]

@AwesomeKingClem ok. I would not know. I didn't look at all the docs

You can always try to build it your self and see what it does.

Waiting for someone to make a script for it is probably going to be a bit. Most people are happy with just using dolphin.

I get you want the best outcome for the games you are having issues with. And it's cool you found this. But the devs have other things going on. So trying for a new GC emu is not high on the list

[AwesomeKingClem]

@ExarKunIv

I'm a perfectionist. Did that answer your question? :P

[AwesomeKingClem]

@ExarKunIv Since it is an official lib core, I may give it a try. I just need to do some more research first.

[AwesomeKingClem]

@AwesomeKingClem I have overall decided to avoid the Ishiiruka core, but I think I have another option that could fix the issue. Unfortunately, my micro hdmi to hdmi converter broke recently, so if someone could test if it works for me, I would appreciate it.
Graphics -> Enhancements -> Color-Correction
It apparently arrived in a recent Dolphin update, and it may fix my issue, but as I said, I can't access my Raspberry Pi 5 until I get a new hdmi converter. Appreciate it!

[abj]

@AwesomeKingClem
I try with Resident Evil 4 that have the same issue but no luck.

This is the real issue that we would hope to get a fix: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10250 .

[AwesomeKingClem]

@abj Well that definitely narrows it down. Back to the grind 🫡

[AwesomeKingClem]

Here's all the current sources that I rounded up from this "thread" (what else do you call it, anyway?) for personal use. I apologize if this counts as bumping a "thread"...

Pastebins:
https://pastebin.com/EjiAguvd
https://pastebin.com/jxu3xeTv

Other Solutions:
https://retropie.org.uk/forum/topic/30541/dolphin-emulator-running-on-rp4b-64bit
https://github.com/dolphin-emu/dolphin/commit/dc08b73db19b8d59ec9ba373a4fb8d7d8639c9e3

Ishiiruka:
https://docs.libretro.com/development/cores/core-specific/ishiiruka/
https://www.reddit.com/r/EmulationOnAndroid/comments/ji84ai/a_very_important_note_on_dolphin_ishiruka_read_if/
https://github.com/libretro/Ishiiruka

Issue Reports:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/10250
https://bugs.dolphin-emu.org/issues/13416

[AwesomeKingClem]

@AwesomeKingClem

Here are some new links that could also prove useful. I have a good feeling on the RasPi Forums thread.

https://forums.raspberrypi.com/viewtopic.php?t=327210
https://forums.dolphin-emu.org/Thread-vulkan-back-end-broken-latest-dev-builds-perhaps-by-newest-amd-drivers
PDF with a VERY LONG link (Do not use this PDF if you don't trust it. I don't blame you..)

[TPR]

@AwesomeKingClem said in MKDD Tint Issue RPI5:

I reinstalled retroarch from source after editing the retroarch.sh file to show the option for vulkan.

Can you please post the edit you made to the retroarch.sh file? Sounds like this is something I need to do. Thank you.

[AwesomeKingClem]

@TPR
Sure, just give me a couple hours.

Edit: Here ya go.
https://pastebin.com/FXLMdm9s

[TPR]

@AwesomeKingClem Thank you!

[gvx64]

@AwesomeKingClem I apologize for bumping this thread but I can confirm that this missing dual source blend + missing GL_EXT_shader_framebuffer_fetch issue in dolphin seriously impacts the Pi4 as well (not just Pi5 users). And it's not just Mario Kart and RE4 that are impacted, Metroid Prime is basically unplayable because the map screen is totally blacked out and Mario Golf Toadstool Tour is also basically unplayable because the golfers are all invisible.

It is very frustrating because the custom dolphin-4,0-5024 build that I got running on 32-Bit Buster played both of these games very nicely. Really, any build before 5.0-1653 would work as that was when the Dolphin devs removed the Alpha Pass feature which is what caused this problem in the first place. Unfortunately, Bookworm doesn't let you compile anything using anything below g++-11 and so it is very hard to get these old dolphin builds to work properly. Heck, even on Bullseye I have no issues compiling dolphin-4.0-9508 with g++-9 and it performs amazingly well. On Bookworm, though, it's a mess. Even after debugging all of the errors due to the standards changes introduced in g++-11, there are still major performance issues that make it unusable on Bookworm and I have no idea what the cause of that is. It also happens to be pretty much impossible to compile an older gcc version on Bookworm for some insane reason (if anybody knows how to do this, please let me know, I have spent weeks trying to get gcc-9 built and I almost broke my build trying to address the compiler errors). Maybe another possible route we can investigate to getting this problem fixed is to ask Debian to upload gcc-9 or even 10 to the apt-get repositories for Bookworm. I really believe that we could get gcc-9 on Bookworm, we could get a very playable experience using the dolphin-emu-5.0 stable build on the Pi4 and Pi5.

Anyways, this problem is very frustrating because there is basically no solution on Bookworm. I am not sure how motivated the Dolphin devs are about assisting Pi users by fixing this glitch and I am not sure if Mesa devs are going to be able to add the missing GL Extensions to the Pi's drivers that easily. Nonetheless, this glitch is very severe as it severely hampers the playability of some of the most popular Gamecube games on the Pi4 and Pi5.